This series of articles provides performance tuning tips for the Splunk platform at search head, indexing and forwarder tiers. Each article contains links to practical examples of how the tips can be implemented in another environment.
The original posts are availabe on medium as Splunk — performance tuning tips — forwarding tier, Splunk — performance tuning tips — search head tier, and Splunk — performance tuning tips — indexing tier
The lantern versions of the article are available as Performance tuning the forwarding tier, Performance tuning the search head tier and Performance tuning the indexing tier.